Not much to say that other reviewers have not already said. Excellent book to advise both educators, art teachers, who would like to get down to drawing (and who consider themselves as "not good" in this area), as designers during learning.
My only complaint is the form and not the substance: The editor has a bad layout work. The central room is ridiculously small, forcing to open the book like crazy to read the lines to the middle. It's pretty painful.